Refactored cpl-query Iterable & Enumerable #129

src/cpl_query/base/ordered_queryable.py

@@ -0,0 +1,34 @@
+from collections.abc import Callable
+
+from cpl_query.base.ordered_queryable_abc import OrderedQueryableABC
+from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
+from cpl_query.iterable.iterable import Iterable
+
+
+class OrderedQueryable(OrderedQueryableABC):
+    r"""Implementation of :class: `cpl_query.extension.Iterable` `cpl_query.extension.OrderedIterableABC`
+    """
+
+    def __init__(self, _t: type, _values: Iterable = None, _func: Callable = None):
+        OrderedQueryableABC.__init__(self, _t, _values, _func)
+
+    def then_by(self: OrderedQueryableABC, _func: Callable) -> OrderedQueryableABC:
+        if self is None:
+            raise ArgumentNoneException(ExceptionArgument.list)
+
+        if _func is None:
+            raise ArgumentNoneException(ExceptionArgument.func)
+
+        self._funcs.append(_func)
+
+        return OrderedQueryable(self.type, sorted(self, key=lambda *args: [f(*args) for f in self._funcs]), _func)
+
+    def then_by_descending(self: OrderedQueryableABC, _func: Callable) -> OrderedQueryableABC:
+        if self is None:
+            raise ArgumentNoneException(ExceptionArgument.list)
+
+        if _func is None:
+            raise ArgumentNoneException(ExceptionArgument.func)
+
+        self._funcs.append(_func)
+        return OrderedQueryable(self.type, sorted(self, key=lambda *args: [f(*args) for f in self._funcs], reverse=True), _func)

src/cpl_query/base/ordered_queryable_abc.py

@@ -2,20 +2,20 @@ from abc import abstractmethod
 from collections.abc import Callable
 from typing import Iterable
 
-from cpl_query.iterable.iterable_abc import IterableABC
+from cpl_query.base.queryable_abc import QueryableABC
 
 
-class OrderedIterableABC(IterableABC):
+class OrderedQueryableABC(QueryableABC):
 
     @abstractmethod
-    def __init__(self, _t: type, _func: Callable = None, _values: Iterable = None):
+    def __init__(self, _t: type, _values: Iterable = None, _func: Callable = None):
-        IterableABC.__init__(self, _t, _values)
+        QueryableABC.__init__(self, _t, _values)
         self._funcs: list[Callable] = []
         if _func is not None:
             self._funcs.append(_func)
 
     @abstractmethod
-    def then_by(self, func: Callable) -> 'OrderedIterableABC':
+    def then_by(self, func: Callable) -> 'OrderedQueryableABC':
         r"""Sorts OrderedList in ascending order by function
 
         Parameter
@@ -29,7 +29,7 @@ class OrderedIterableABC(IterableABC):
         pass
 
     @abstractmethod
-    def then_by_descending(self, func: Callable) -> 'OrderedIterableABC':
+    def then_by_descending(self, func: Callable) -> 'OrderedQueryableABC':
         r"""Sorts OrderedList in descending order by function
 
         Parameter

src/cpl_query/base/queryable_abc.py

@@ -1,10 +1,19 @@
-from abc import abstractmethod, ABC
 from typing import Optional, Callable, Union
 
+from cpl_query._helper import is_number
+from cpl_query.base.sequence_abc import SequenceABC
+from cpl_query.exceptions import InvalidTypeException, ArgumentNoneException, ExceptionArgument, IndexOutOfRangeException
 
-class QueryableABC(ABC):
 
-    @abstractmethod
+def _default_lambda(x: object):
+    return x
+
+
+class QueryableABC(SequenceABC):
+
+    def __init__(self, t: type = None, values: list = None):
+        SequenceABC.__init__(self, t, values)
+
     def all(self, _func: Callable = None) -> bool:
         r"""Checks if every element of list equals result found by function
 
@@ -17,9 +26,11 @@ class QueryableABC(ABC):
         -------
             bool
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
+
+        return self.count(_func) == self.count()
 
-    @abstractmethod
     def any(self, _func: Callable = None) -> bool:
         r"""Checks if list contains result found by function
 
@@ -32,9 +43,11 @@ class QueryableABC(ABC):
         -------
             bool
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
+
+        return self.where(_func).count() > 0
 
-    @abstractmethod
     def average(self, _func: Callable = None) -> Union[int, float, complex]:
         r"""Returns average value of list
 
@@ -47,10 +60,12 @@ class QueryableABC(ABC):
         -------
             Union[int, float, complex]
         """
-        pass
+        if _func is None and not is_number(self.type):
+            raise InvalidTypeException()
 
-    @abstractmethod
+        return self.sum(_func) / self.count()
-    def contains(self, value: object) -> bool:
+
+    def contains(self, _value: object) -> bool:
         r"""Checks if list contains value given by function
 
         Parameter
@@ -62,9 +77,11 @@ class QueryableABC(ABC):
         -------
             bool
         """
-        pass
+        if _value is None:
+            raise ArgumentNoneException(ExceptionArgument.value)
+
+        return self.where(lambda x: x == _value).count() > 0
 
-    @abstractmethod
     def count(self, _func: Callable = None) -> int:
         r"""Returns length of list or count of found elements
 
@@ -77,9 +94,11 @@ class QueryableABC(ABC):
         -------
             int
         """
-        pass
+        if _func is None:
+            return self.__len__()
+
+        return self.where(_func).__len__()
 
-    @abstractmethod
     def distinct(self, _func: Callable = None) -> 'QueryableABC':
         r"""Returns list without redundancies
 
@@ -92,39 +111,62 @@ class QueryableABC(ABC):
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
 
-    @abstractmethod
+        result = []
-    def element_at(self, index: int) -> any:
+        known_values = []
+        for element in self:
+            value = _func(element)
+            if value in known_values:
+                continue
+
+            known_values.append(value)
+            result.append(element)
+
+        return type(self)(self._type, result)
+
+    def element_at(self, _index: int) -> any:
         r"""Returns element at given index
 
         Parameter
         ---------
-            index: :class:`int`
+            _index: :class:`int`
                 index
 
         Returns
         -------
-            Value at index: any
+            Value at _index: any
         """
-        pass
+        if _index is None:
+            raise ArgumentNoneException(ExceptionArgument.index)
 
-    @abstractmethod
+        result = self[_index]
-    def element_at_or_default(self, index: int) -> Optional[any]:
+        if result is None:
+            raise IndexOutOfRangeException
+
+        return result
+
+    def element_at_or_default(self, _index: int) -> Optional[any]:
         r"""Returns element at given index or None
 
         Parameter
         ---------
-            index: :class:`int`
+            _index: :class:`int`
                 index
 
         Returns
         -------
-            Value at index: Optional[any]
+            Value at _index: Optional[any]
         """
-        pass
+        if _index is None:
+            raise ArgumentNoneException(ExceptionArgument.index)
+
+        try:
+            return self[_index]
+        except IndexError:
+            return None
 
-    @abstractmethod
     def first(self) -> any:
         r"""Returns first element
 
@@ -132,9 +174,11 @@ class QueryableABC(ABC):
         -------
             First element of list: any
         """
-        pass
+        if len(self) == 0:
+            raise IndexOutOfRangeException()
+
+        return self[0]
 
-    @abstractmethod
     def first_or_default(self) -> any:
         r"""Returns first element or None
 
@@ -142,9 +186,11 @@ class QueryableABC(ABC):
         -------
             First element of list: Optional[any]
         """
-        pass
+        if len(self) == 0:
+            return None
+
+        return self[0]
 
-    @abstractmethod
     def for_each(self, _func: Callable = None):
         r"""Runs given function for each element of list
 
@@ -153,7 +199,11 @@ class QueryableABC(ABC):
             func: :class: `Callable`
                 function to call
         """
-        pass
+        if _func is not None:
+            for element in self:
+                _func(element)
+
+        return self
 
     def group_by(self, _func: Callable = None) -> 'QueryableABC':
         r"""Groups by func
@@ -162,9 +212,23 @@ class QueryableABC(ABC):
         -------
             Grouped list[list[any]]: any
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
+        groups = {}
+
+        for v in self:
+            value = _func(v)
+            if v not in groups:
+                groups[value] = []
+
+            groups[value].append(v)
+
+        v = []
+        for g in groups.values():
+            v.append(type(self)(None, g))
+        x = type(self)(type(self), v)
+        return x
 
-    @abstractmethod
     def last(self) -> any:
         r"""Returns last element
 
@@ -172,9 +236,11 @@ class QueryableABC(ABC):
         -------
             Last element of list: any
         """
-        pass
+        if len(self) == 0:
+            raise IndexOutOfRangeException()
+
+        return self[len(self) - 1]
 
-    @abstractmethod
     def last_or_default(self) -> any:
         r"""Returns last element or None
 
@@ -182,9 +248,11 @@ class QueryableABC(ABC):
         -------
             Last element of list: Optional[any]
         """
-        pass
+        if len(self) == 0:
+            return None
+
+        return self[len(self) - 1]
 
-    @abstractmethod
     def max(self, _func: Callable = None) -> Union[int, float, complex]:
         r"""Returns the highest value
 
@@ -197,19 +265,33 @@ class QueryableABC(ABC):
         -------
             Union[int, float, complex]
         """
-        pass
+        if _func is None and not is_number(self.type):
+            raise InvalidTypeException()
 
-    @abstractmethod
+        if _func is None:
-    def median(self) -> Union[int, float]:
+            _func = _default_lambda
+
+        return _func(max(self, key=_func))
+
+    def median(self, _func=None) -> Union[int, float]:
         r"""Return the median value of data elements
 
         Returns
         -------
             Union[int, float]
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
+
+        result = self.order_by(_func).select(_func).to_list()
+        length = len(result)
+        i = int(length / 2)
+        return (
+            result[i]
+            if length % 2 == 1
+            else (float(result[i - 1]) + float(result[i])) / float(2)
+        )
 
-    @abstractmethod
     def min(self, _func: Callable = None) -> Union[int, float, complex]:
         r"""Returns the lowest value
 
@@ -222,9 +304,14 @@ class QueryableABC(ABC):
         -------
             Union[int, float, complex]
         """
-        pass
+        if _func is None and not is_number(self.type):
+            raise InvalidTypeException()
+
+        if _func is None:
+            _func = _default_lambda
+
+        return _func(min(self, key=_func))
 
-    @abstractmethod
     def order_by(self, _func: Callable = None) -> 'QueryableABC':
         r"""Sorts elements by function in ascending order
 
@@ -237,9 +324,12 @@ class QueryableABC(ABC):
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
+
+        from cpl_query.base.ordered_queryable import OrderedQueryable
+        return OrderedQueryable(self.type, sorted(self, key=_func), _func)
 
-    @abstractmethod
     def order_by_descending(self, _func: Callable = None) -> 'QueryableABC':
         r"""Sorts elements by function in descending order
 
@@ -252,9 +342,12 @@ class QueryableABC(ABC):
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
+
+        from cpl_query.base.ordered_queryable import OrderedQueryable
+        return OrderedQueryable(self.type, sorted(self, key=_func, reverse=True), _func)
 
-    @abstractmethod
     def reverse(self) -> 'QueryableABC':
         r"""Reverses list
 
@@ -262,29 +355,31 @@ class QueryableABC(ABC):
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        return type(self)(self._type, list(reversed(self)))
 
-    @abstractmethod
+    def select(self, _func: Callable) -> 'QueryableABC':
-    def select(self, _f: Callable) -> 'QueryableABC':
         r"""Formats each element of list to a given format
 
         Returns
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _func is None:
+            _func = _default_lambda
 
-    @abstractmethod
+        return type(self)(any, [_func(_o) for _o in self])
-    def select_many(self, _f: Callable) -> 'QueryableABC':
+
+    def select_many(self, _func: Callable) -> 'QueryableABC':
         r"""Flattens resulting lists to one
 
         Returns
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        # The line below is pain. I don't understand anything of it...
+        # written on 09.11.2022 by Sven Heidemann
+        return type(self)(any, [_a for _o in self for _a in _func(_o)])
 
-    @abstractmethod
     def single(self) -> any:
         r"""Returns one single element of list
 
@@ -297,9 +392,13 @@ class QueryableABC(ABC):
             ArgumentNoneException: when argument is None
             Exception: when argument is None or found more than one element
         """
-        pass
+        if len(self) > 1:
+            raise Exception('Found more than one element')
+        elif len(self) == 0:
+            raise Exception('Found no element')
+
+        return self[0]
 
-    @abstractmethod
     def single_or_default(self) -> Optional[any]:
         r"""Returns one single element of list
 
@@ -307,39 +406,48 @@ class QueryableABC(ABC):
         -------
             Found value: Optional[any]
         """
-        pass
+        if len(self) > 1:
+            raise Exception('Index out of range')
+        elif len(self) == 0:
+            return None
 
-    @abstractmethod
+        return self[0]
-    def skip(self, index: int) -> 'QueryableABC':
+
+    def skip(self, _index: int) -> 'QueryableABC':
         r"""Skips all elements from index
 
         Parameter
         ---------
-            index: :class:`int`
+            _index: :class:`int`
                 index
 
         Returns
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _index is None:
+            raise ArgumentNoneException(ExceptionArgument.index)
 
-    @abstractmethod
+        return type(self)(self.type, values=self[_index:])
-    def skip_last(self, index: int) -> 'QueryableABC':
+
+    def skip_last(self, _index: int) -> 'QueryableABC':
         r"""Skips all elements after index
 
         Parameter
         ---------
-            index: :class:`int`
+            _index: :class:`int`
                 index
 
         Returns
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _index is None:
+            raise ArgumentNoneException(ExceptionArgument.index)
+
+        index = len(self) - _index
+        return type(self)(self._type, self[:index])
 
-    @abstractmethod
     def sum(self, _func: Callable = None) -> Union[int, float, complex]:
         r"""Sum of all values
 
@@ -352,39 +460,54 @@ class QueryableABC(ABC):
         -------
             Union[int, float, complex]
         """
-        pass
+        if _func is None and not is_number(self.type):
+            raise InvalidTypeException()
 
-    @abstractmethod
+        if _func is None:
-    def take(self, index: int) -> 'QueryableABC':
+            _func = _default_lambda
+
+        result = 0
+        for x in self:
+            result += _func(x)
+
+        return result
+
+    def take(self, _index: int) -> 'QueryableABC':
         r"""Takes all elements from index
 
         Parameter
         ---------
-            index: :class:`int`
+            _index: :class:`int`
                 index
 
         Returns
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _index is None:
+            raise ArgumentNoneException(ExceptionArgument.index)
 
-    @abstractmethod
+        return type(self)(self._type, self[:_index])
-    def take_last(self, index: int) -> 'QueryableABC':
+
+    def take_last(self, _index: int) -> 'QueryableABC':
         r"""Takes all elements after index
 
         Parameter
         ---------
-            index: :class:`int`
+            _index: :class:`int`
                 index
 
         Returns
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        index = len(self) - _index
+
+        if index >= len(self) or index < 0:
+            raise IndexOutOfRangeException()
+
+        return type(self)(self._type, self[index:])
 
-    @abstractmethod
     def where(self, _func: Callable = None) -> 'QueryableABC':
         r"""Select element by function
 
@@ -397,4 +520,15 @@ class QueryableABC(ABC):
         -------
             :class: `cpl_query.base.queryable_abc.QueryableABC`
         """
-        pass
+        if _func is None:
+            raise ArgumentNoneException(ExceptionArgument.func)
+
+        if _func is None:
+            _func = _default_lambda
+
+        result = []
+        for element in self:
+            if _func(element):
+                result.append(element)
+
+        return type(self)(self.type, result)

src/cpl_query/base/sequence_abc.py

@@ -0,0 +1,86 @@
+from abc import ABC, abstractmethod
+from itertools import islice
+
+from cpl_query.base.sequence_values import SequenceValues
+
+
+class SequenceABC(ABC):
+
+    @abstractmethod
+    def __init__(self, t: type = None, values: list = None):
+        ABC.__init__(self)
+        if values is None:
+            values = []
+
+        if t is None and len(values) > 0:
+            t = type(values[0])
+
+        if t is None:
+            t = any
+
+        self._type = t
+        self._set_values(values)
+
+    def __len__(self):
+        return len(self._values)
+
+    def __iter__(self):
+        return iter(self._values)
+
+    def next(self):
+        return next(self._values)
+
+    def __next__(self):
+        return self.next()
+
+    def __getitem__(self, n):
+        values = [x for x in self]
+        if isinstance(n, slice):
+            try:
+                return values[n]
+            except Exception as e:
+                raise e
+
+        for i in range(len(values)):
+            if i == n:
+                return values[i]
+
+    def __repr__(self):
+        return f'<{type(self).__name__} {list(self).__repr__()}>'
+
+    @property
+    def type(self) -> type:
+        return self._type
+
+    def _check_type(self, __object: any):
+        if self._type == any:
+            return
+
+        if self._type is not None and type(__object) != self._type and not isinstance(type(__object), self._type) and not issubclass(type(__object), self._type):
+            raise Exception(f'Unexpected type: {type(__object)}\nExpected type: {self._type}')
+
+    def _set_values(self, values: list):
+        self._values = SequenceValues(values, self._type)
+
+    def to_list(self) -> list:
+        r"""Converts :class: `cpl_query.base.sequence_abc.SequenceABC` to :class: `list`
+
+        Returns
+        -------
+            :class: `list`
+        """
+        return [x for x in self]
+
+    @classmethod
+    def empty(cls) -> 'SequenceABC':
+        r"""Returns an empty sequence
+
+        Returns
+        -------
+            Sequence object that contains no elements
+        """
+        return cls()
+
+    @classmethod
+    def range(cls, start: int, length: int) -> 'SequenceABC':
+        return cls(int, list(range(start, length)))

src/cpl_query/base/sequence_values.py

@@ -5,15 +5,13 @@ from cpl_query.exceptions import IndexOutOfRangeException
 
 
 class SequenceValues:
-    def __init__(self, data, _t: type):
+    def __init__(self, data: list, _t: type):
-        if data is None:
-            data = []
-
         if len(data) > 0:
             def type_check(_t: type, _l: list):
-                return all(isinstance(x, _t) for x in _l)
+                return all([_t == any or isinstance(x, _t) for x in _l])
 
             if not type_check(_t, data):
+                print([type(x) for x in data])
                 raise Exception(f'Unexpected type\nExpected type: {_t}')
 
         if not hasattr(data, '__iter__'):
@@ -30,7 +28,7 @@ class SequenceValues:
 
     def __iter__(self):
         i = 0
-        while i < len(self):
+        while i < self._len():
             yield next(self._cycle)
             i += 1
 

src/cpl_query/enumerable/__init__.py

@@ -19,12 +19,9 @@ __version__ = '2022.10.0.post2'
 
 from collections import namedtuple
 
-
 # imports:
 from .enumerable import Enumerable
 from .enumerable_abc import EnumerableABC
-from .ordered_enumerable import OrderedEnumerable
-from .ordered_enumerable_abc import OrderedEnumerableABC
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
 version_info = VersionInfo(major='2022', minor='10', micro='0.post2')

src/cpl_query/enumerable/enumerable.py

@@ -1,9 +1,4 @@
-from typing import Union, Callable, Optional
-
-from cpl_query._helper import is_number
 from cpl_query.enumerable.enumerable_abc import EnumerableABC
-from cpl_query.enumerable.ordered_enumerable_abc import OrderedEnumerableABC
-from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument, InvalidTypeException, IndexOutOfRangeException
 
 
 def _default_lambda(x: object):
@@ -14,294 +9,5 @@ class Enumerable(EnumerableABC):
     r"""Implementation of :class: `cpl_query.enumerable.enumerable_abc.EnumerableABC`
     """
 
-    def __init__(self, t: type = None, values: Union[list, iter] = None):
+    def __init__(self, t: type = None, values: list = None):
         EnumerableABC.__init__(self, t, values)
-
-    def all(self, _func: Callable = None) -> bool:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            _func = _default_lambda
-
-        result = self.where(_func)
-        return len(result) == len(self)
-
-    def any(self, _func: Callable = None) -> bool:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            _func = _default_lambda
-
-        result = self.where(_func)
-        return len(result) > 0
-
-    def average(self, _func: Callable = None) -> Union[int, float, complex]:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        if _func is None:
-            _func = _default_lambda
-
-        return float(self.sum(_func)) / float(self.count())
-
-    def contains(self, _value: object) -> bool:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _value is None:
-            raise ArgumentNoneException(ExceptionArgument.value)
-
-        return self.where(lambda x: x == _value).count() > 0
-
-    def count(self, _func: Callable = None) -> int:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            return len(self)
-
-        return len(self.where(_func))
-
-    def distinct(self, _func: Callable = None) -> EnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            _func = _default_lambda
-
-        result = Enumerable()
-        known_values = []
-        for element in self:
-            value = _func(element)
-            if value in known_values:
-                continue
-
-            known_values.append(value)
-            result.add(element)
-
-        return result
-
-    def element_at(self, _index: int) -> any:
-        self._values.reset()
-        while _index >= 0:
-            current = self.next()
-            if _index == 0:
-                return current
-            _index -= 1
-
-    def element_at_or_default(self, _index: int) -> any:
-        try:
-            return self.element_at(_index)
-        except IndexOutOfRangeException:
-            return None
-
-    @staticmethod
-    def empty() -> 'EnumerableABC':
-        r"""Returns an empty enumerable
-
-        Returns
-        -------
-            Enumerable object that contains no elements
-        """
-        return Enumerable()
-
-    def first(self: EnumerableABC, _func=None) -> any:
-        if _func is not None:
-            return self.where(_func).element_at(0)
-        return self.element_at(0)
-
-    def first_or_default(self: EnumerableABC, _func=None) -> Optional[any]:
-        if _func is not None:
-            return self.where(_func).element_at_or_default(0)
-        return self.element_at_or_default(0)
-
-    def for_each(self, _func: Callable = None):
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            _func = _default_lambda
-
-        for element in self:
-            _func(element)
-
-    def last(self: EnumerableABC) -> any:
-        return self.element_at(self.count() - 1)
-
-    def last_or_default(self: EnumerableABC) -> Optional[any]:
-        return self.element_at_or_default(self.count() - 1)
-
-    def max(self, _func: Callable = None) -> Union[int, float, complex]:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        if _func is None:
-            _func = _default_lambda
-
-        return _func(max(self, key=_func))
-
-    def median(self, _func=None) -> Union[int, float]:
-        if _func is None:
-            _func = _default_lambda
-        result = self.order_by(_func).select(_func).to_list()
-        length = len(result)
-        i = int(length / 2)
-        return (
-            result[i]
-            if length % 2 == 1
-            else (float(result[i - 1]) + float(result[i])) / float(2)
-        )
-
-    def min(self, _func: Callable = None) -> Union[int, float, complex]:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        if _func is None:
-            _func = _default_lambda
-
-        return _func(min(self, key=_func))
-
-    def order_by(self, _func: Callable = None) -> OrderedEnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            _func = _default_lambda
-
-        from cpl_query.enumerable.ordered_enumerable import OrderedEnumerable
-        return OrderedEnumerable(self.type, _func, sorted(self, key=_func))
-
-    def order_by_descending(self, _func: Callable = None) -> OrderedEnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            _func = _default_lambda
-
-        from cpl_query.enumerable.ordered_enumerable import OrderedEnumerable
-        return OrderedEnumerable(self.type, _func, sorted(self, key=_func, reverse=True))
-
-    @staticmethod
-    def range(start: int, length: int) -> 'EnumerableABC':
-        return Enumerable(int, range(start, length))
-
-    def reverse(self: EnumerableABC) -> EnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        return Enumerable(self.type, list(reversed(self.to_list())))
-
-    def select(self, _func: Callable = None) -> EnumerableABC:
-        if _func is None:
-            _func = _default_lambda
-
-        _l = [_func(_o) for _o in self]
-        return Enumerable(self._type if len(_l) < 1 else type(_l[0]), _l)
-
-    def select_many(self, _func: Callable = None) -> EnumerableABC:
-        if _func is None:
-            _func = _default_lambda
-
-        # The line below is pain. I don't understand anything of the list comprehension...
-        # written on 09.11.2022 by Sven Heidemann
-        _l = [_a for _o in self for _a in _func(_o)]
-        return Enumerable(self._type if len(_l) < 1 else type(_l[0]), _l)
-
-    def single(self: EnumerableABC) -> any:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if len(self) > 1:
-            raise IndexError('Found more than one element')
-        elif len(self) == 0:
-            raise IndexOutOfRangeException(f'{type(self).__name__} is empty')
-
-        return self.element_at(0)
-
-    def single_or_default(self: EnumerableABC) -> Optional[any]:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if len(self) > 1:
-            raise IndexError('Found more than one element')
-        elif len(self) == 0:
-            return None
-
-        return self.element_at(0)
-
-    def skip(self, _index: int) -> EnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        _list = self.to_list()
-
-        return Enumerable(self.type, _list[_index:])
-
-    def skip_last(self, _index: int) -> EnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        index = len(self) - _index
-
-        return self.take(len(self) - _index)
-
-    def take(self, _index: int) -> EnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        _list = self.to_list()
-
-        return Enumerable(self.type, _list[:_index])
-
-    def take_last(self, _index: int) -> EnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        _list = self.to_list()
-        index = len(_list) - _index
-
-        return self.skip(index)
-
-    def sum(self, _func: Callable = None) -> Union[int, float, complex]:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        if _func is None:
-            _func = _default_lambda
-
-        return sum([_func(x) for x in self])
-
-    def where(self, _func: Callable = None) -> EnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            raise ArgumentNoneException(ExceptionArgument.func)
-
-        return Enumerable(self.type, list(filter(_func, self._values)))

src/cpl_query/enumerable/enumerable_abc.py

@@ -1,8 +1,6 @@
 from abc import abstractmethod
-from typing import Iterable
 
 from cpl_query.base.queryable_abc import QueryableABC
-from cpl_query.base.sequence_values import SequenceValues
 
 
 class EnumerableABC(QueryableABC):
@@ -11,81 +9,15 @@ class EnumerableABC(QueryableABC):
 
     @abstractmethod
     def __init__(self, t: type = None, values: list = None):
-        if t == any or t is None and values is not None:
+        QueryableABC.__init__(self, t, values)
-            t = type(values[0])
 
-        self._type, self._values, self._remove_error_check = t, SequenceValues(values, t), True
+        self._remove_error_check = True
-
-    def __len__(self):
-        return len(self._values)
-
-    def __iter__(self):
-        return iter(self._values)
-
-    def next(self):
-        return next(self._values)
-
-    def __next__(self):
-        return self.next()
-
-    def __repr__(self):
-        return f'<{type(self).__name__} {list(self).__repr__()}>'
-
-    @property
-    def type(self) -> type:
-        return self._type
 
     def set_remove_error_check(self, _value: bool):
         r"""Set flag to check if element exists before removing
         """
         self._remove_error_check = _value
 
-    def add(self, __object: object) -> None:
-        r"""Adds an element to the enumerable.
-        """
-        if self._type is not None and type(__object) != self._type and not isinstance(type(__object), self._type) and not issubclass(type(__object), self._type):
-            raise Exception(f'Unexpected type: {type(__object)}\nExpected type: {self._type}')
-
-        if len(self) == 0 and self._type is None:
-            self._type = type(__object)
-
-        self._values = SequenceValues([*self._values, __object], self._type)
-
-    def clear(self):
-        r"""Removes all elements
-        """
-        del self._values
-        self._values = []
-
-    def extend(self, __list: Iterable) -> 'EnumerableABC':
-        r"""Adds elements of given list to enumerable
-
-        Parameter
-        ---------
-            __enumerable: :class: `cpl_query.enumerable.enumerable_abc.EnumerableABC`
-                index
-        """
-        self._values = SequenceValues([*self._values, *__list], self._type)
-        return self
-
-    def remove(self, __object: object) -> None:
-        r"""Removes element from list
-
-        Parameter
-        ---------
-            __object: :class:`object`
-                value
-
-        Raises
-        ---------
-            `Element not found` when element does not exist. Check can be deactivated by calling <enumerable>.set_remove_error_check(False)
-        """
-        if self._remove_error_check and __object not in self._values:
-            raise Exception('Element not found')
-
-        # self._values.remove(__object)
-        self._values = SequenceValues([x for x in self.to_list() if x != __object], self._type)
-
     def to_iterable(self) -> 'IterableABC':
         r"""Converts :class: `cpl_query.enumerable.enumerable_abc.EnumerableABC` to :class: `cpl_query.iterable.iterable_abc.IterableABC`
 
@@ -95,12 +27,3 @@ class EnumerableABC(QueryableABC):
         """
         from cpl_query.iterable.iterable import Iterable
         return Iterable(self._type, self.to_list())
-
-    def to_list(self) -> list:
-        r"""Converts :class: `cpl_query.base.sequence_abc.SequenceABC` to :class: `list`
-
-        Returns
-        -------
-            :class: `list`
-        """
-        return [x for x in self]

src/cpl_query/enumerable/ordered_enumerable.py

@@ -1,36 +0,0 @@
-from collections.abc import Callable
-from typing import Iterable
-
-from cpl_query.enumerable.enumerable import Enumerable
-from cpl_query.enumerable.ordered_enumerable_abc import OrderedEnumerableABC
-from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
-
-
-class OrderedEnumerable(Enumerable, OrderedEnumerableABC):
-    r"""Implementation of :class: `cpl_query.extension.Enumerable` `cpl_query.extension.OrderedEnumerableABC`
-    """
-
-    def __init__(self, _t: type, _func: Callable = None, _values: Iterable = None):
-        Enumerable.__init__(self, _t)
-        OrderedEnumerableABC.__init__(self, _t, _func, _values)
-
-    def then_by(self: OrderedEnumerableABC, _func: Callable) -> OrderedEnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            raise ArgumentNoneException(ExceptionArgument.func)
-
-        self._funcs.append(_func)
-
-        return OrderedEnumerable(self.type, _func, sorted(self, key=lambda *args: [f(*args) for f in self._funcs]))
-
-    def then_by_descending(self: OrderedEnumerableABC, _func: Callable) -> OrderedEnumerableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            raise ArgumentNoneException(ExceptionArgument.func)
-
-        self._funcs.append(_func)
-        return OrderedEnumerable(self.type, _func, sorted(self, key=lambda *args: [f(*args) for f in self._funcs], reverse=True))

src/cpl_query/enumerable/ordered_enumerable_abc.py

@@ -1,43 +0,0 @@
-from abc import abstractmethod
-from collections.abc import Callable
-from typing import Iterable
-
-from cpl_query.enumerable.enumerable_abc import EnumerableABC
-
-
-class OrderedEnumerableABC(EnumerableABC):
-
-    @abstractmethod
-    def __init__(self, _t: type, _func: Callable = None, _values: Iterable = None):
-        EnumerableABC.__init__(self, _t, _values)
-        self._funcs: list[Callable] = []
-        if _func is not None:
-            self._funcs.append(_func)
-
-    @abstractmethod
-    def then_by(self, func: Callable) -> 'OrderedEnumerableABC':
-        r"""Sorts OrderedList in ascending order by function
-
-        Parameter
-        ---------
-            func: :class:`Callable`
-            
-        Returns
-        -------
-            list of :class:`cpl_query.extension.OrderedEnumerableABC`
-        """
-        pass
-
-    @abstractmethod
-    def then_by_descending(self, func: Callable) -> 'OrderedEnumerableABC':
-        r"""Sorts OrderedList in descending order by function
-
-        Parameter
-        ---------
-            func: :class:`Callable`
-            
-        Returns
-        -------
-            list of :class:`cpl_query.extension.OrderedEnumerableABC`
-        """
-        pass

src/cpl_query/iterable/__init__.py

@@ -23,8 +23,6 @@ from collections import namedtuple
 # imports:
 from .iterable_abc import IterableABC
 from .iterable import Iterable
-from .ordered_iterable_abc import OrderedIterableABC
-from .ordered_iterable import OrderedIterable
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
 version_info = VersionInfo(major='2022', minor='10', micro='0.post2')

src/cpl_query/iterable/iterable.py

@@ -1,9 +1,6 @@
-from typing import Callable, Optional, Union, Iterable as IterableType
+from typing import Iterable as IterableType
 
-from cpl_query._helper import is_number
-from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument, InvalidTypeException, IndexOutOfRangeException
 from cpl_query.iterable.iterable_abc import IterableABC
-from cpl_query.iterable.ordered_iterable_abc import OrderedIterableABC
 
 
 def _default_lambda(x: object):
@@ -14,251 +11,3 @@ class Iterable(IterableABC):
 
     def __init__(self, t: type = None, values: IterableType = None):
         IterableABC.__init__(self, t, values)
-
-    def all(self, _func: Callable = None) -> bool:
-        if _func is None:
-            _func = _default_lambda
-
-        return self.where(_func).count() == self.count()
-
-    def any(self, _func: Callable = None) -> bool:
-        if _func is None:
-            _func = _default_lambda
-
-        return self.where(_func).count() > 0
-
-    def average(self, _func: Callable = None) -> Union[int, float, complex]:
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        return self.sum(_func) / self.count()
-
-    def contains(self, _value: object) -> bool:
-        if _value is None:
-            raise ArgumentNoneException(ExceptionArgument.value)
-
-        return self.where(lambda x: x == _value).count() > 0
-
-    def count(self, _func: Callable = None) -> int:
-        if _func is None:
-            return self.__len__()
-
-        return self.where(_func).__len__()
-
-    def distinct(self, _func: Callable = None) -> 'Iterable':
-        if _func is None:
-            _func = _default_lambda
-
-        result = Iterable()
-        known_values = []
-        for element in self:
-            value = _func(element)
-            if value in known_values:
-                continue
-
-            known_values.append(value)
-            result.append(element)
-
-        return result
-
-    def element_at(self, _index: int) -> any:
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        return self[_index]
-
-    def element_at_or_default(self, _index: int) -> any:
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        try:
-            return self[_index]
-        except IndexError:
-            return None
-
-    def first(self) -> any:
-        if len(self) == 0:
-            raise IndexOutOfRangeException()
-
-        return self[0]
-
-    def first_or_default(self) -> Optional[any]:
-        if len(self) == 0:
-            return None
-
-        return self[0]
-
-    def group_by(self, _func: Callable = None) -> 'Iterable':
-        if _func is None:
-            _func = _default_lambda
-        groups = {}
-
-        for v in self:
-            value = _func(v)
-            if v not in groups:
-                groups[value] = Iterable(type(v))
-
-            groups[value].append(v)
-
-        return Iterable(Iterable).extend(groups.values())
-
-    def last(self) -> any:
-        if len(self) == 0:
-            raise IndexOutOfRangeException()
-
-        return self[len(self) - 1]
-
-    def last_or_default(self) -> Optional[any]:
-        if len(self) == 0:
-            return None
-
-        return self[len(self) - 1]
-
-    def for_each(self, _func: Callable = None) -> 'Iterable':
-        if _func is not None:
-            for element in self:
-                _func(element)
-
-        return self
-
-    def max(self, _func: Callable = None) -> Union[int, float, complex]:
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        if _func is None:
-            _func = _default_lambda
-
-        return _func(max(self, key=_func))
-
-    def median(self, _func=None) -> Union[int, float]:
-        if _func is None:
-            _func = _default_lambda
-
-        result = self.order_by(_func).select(_func).to_list()
-        length = len(result)
-        i = int(length / 2)
-        return (
-            result[i]
-            if length % 2 == 1
-            else (float(result[i - 1]) + float(result[i])) / float(2)
-        )
-
-    def min(self, _func: Callable = None) -> Union[int, float, complex]:
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        if _func is None:
-            _func = _default_lambda
-
-        return _func(min(self, key=_func))
-
-    def order_by(self, _func: Callable = None) -> OrderedIterableABC:
-        if _func is None:
-            _func = _default_lambda
-
-        from cpl_query.iterable.ordered_iterable import OrderedIterable
-        return OrderedIterable(self.type, _func, sorted(self, key=_func))
-
-    def order_by_descending(self, _func: Callable = None) -> OrderedIterableABC:
-        if _func is None:
-            _func = _default_lambda
-
-        from cpl_query.iterable.ordered_iterable import OrderedIterable
-        return OrderedIterable(self.type, _func, sorted(self, key=_func, reverse=True))
-
-    def reverse(self) -> 'Iterable':
-        return Iterable().extend(reversed(self))
-
-    def select(self, _func: Callable = None) -> 'Iterable':
-        if _func is None:
-            _func = _default_lambda
-
-        result = Iterable()
-        result.extend(_func(_o) for _o in self)
-        return result
-
-    def select_many(self, _func: Callable = None) -> 'Iterable':
-        result = Iterable()
-        # The line below is pain. I don't understand anything of it...
-        # written on 09.11.2022 by Sven Heidemann
-        elements = [_a for _o in self for _a in _func(_o)]
-
-        result.extend(elements)
-        return result
-
-    def single(self) -> any:
-        if len(self) > 1:
-            raise Exception('Found more than one element')
-        elif len(self) == 0:
-            raise Exception('Found no element')
-
-        return self[0]
-
-    def single_or_default(self) -> Optional[any]:
-        if len(self) > 1:
-            raise Exception('Index out of range')
-        elif len(self) == 0:
-            return None
-
-        return self[0]
-
-    def skip(self, _index: int) -> 'Iterable':
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        return Iterable(self.type, values=self[_index:])
-
-    def skip_last(self, _index: int) -> 'Iterable':
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        index = len(self) - _index
-
-        result = Iterable()
-        result.extend(self[:index])
-        return result
-
-    def sum(self, _func: Callable = None) -> Union[int, float, complex]:
-        if _func is None and not is_number(self.type):
-            raise InvalidTypeException()
-
-        if _func is None:
-            _func = _default_lambda
-
-        result = 0
-        for x in self:
-            result += _func(x)
-
-        return result
-
-    def take(self, _index: int) -> 'Iterable':
-        if _index is None:
-            raise ArgumentNoneException(ExceptionArgument.index)
-
-        result = Iterable()
-        result.extend(self[:_index])
-        return result
-
-    def take_last(self, _index: int) -> 'Iterable':
-        index = len(self) - _index
-
-        if index >= len(self) or index < 0:
-            raise IndexOutOfRangeException()
-
-        result = Iterable()
-        result.extend(self[index:])
-        return result
-
-    def where(self, _func: Callable = None) -> 'Iterable':
-        if _func is None:
-            raise ArgumentNoneException(ExceptionArgument.func)
-
-        if _func is None:
-            _func = _default_lambda
-
-        result = Iterable(self.type)
-        for element in self:
-            if _func(element):
-                result.append(element)
-
-        return result

src/cpl_query/iterable/iterable_abc.py

@@ -4,54 +4,45 @@ from typing import Iterable
 from cpl_query.base.queryable_abc import QueryableABC
 
 
-class IterableABC(list, QueryableABC):
+class IterableABC(QueryableABC):
     r"""ABC to define functions on list
     """
 
     @abstractmethod
     def __init__(self, t: type = None, values: Iterable = None):
-        values = [] if values is None else values
+        QueryableABC.__init__(self, t, values)
-        list.__init__(self, values)
 
-        if t is None and len(values) > 0:
+    def __setitem__(self, i, val):
-            t = type(values[0])
+        self._check_type(val)
+        values = [*self._values]
+        values[i] = val
+        self._set_values(values)
 
-        self._type = t
+    def __delitem__(self, i):
-
+        values = [*self._values]
-    def __repr__(self):
+        del values[i]
-        return f'<{type(self).__name__} {list(self).__repr__()}>'
+        self._set_values(values)
 
     @property
     def type(self) -> type:
         return self._type
 
-    def to_list(self) -> list:
-        r"""Converts :class: `cpl_query.base.sequence_abc.SequenceABC` to :class: `list`
-
-        Returns
-        -------
-            :class: `list`
-        """
-        return [x for x in self]
-
     def __str__(self):
         return str(self.to_list())
 
-    def append(self, __object: object) -> None:
+    def append(self, _object: object):
+        self.add(_object)
+
+    def add(self, _object: object):
         r"""Adds element to list
         Parameter
         ---------
-            __object: :class:`object`
+            _object: :class:`object`
                 value
         """
-        if self._type is not None and type(__object) != self._type and not isinstance(type(__object), self._type) and not issubclass(type(__object), self._type):
+        self._check_type(_object)
-            raise Exception(f'Unexpected type: {type(__object)}\nExpected type: {self._type}')
+        values = [*self._values, _object]
-
+        self._set_values(values)
-        if len(self) == 0 and self._type is None:
-            self._type = type(__object)
-
-        # self._values = SequenceValues([*self._values, __object], self._type)
-        super().append(__object)
 
     def extend(self, __iterable: Iterable) -> 'IterableABC':
         r"""Adds elements of given list to list

src/cpl_query/iterable/ordered_iterable.py

@@ -1,35 +0,0 @@
-from collections.abc import Callable
-
-from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
-from cpl_query.iterable.iterable import Iterable
-from cpl_query.iterable.ordered_iterable_abc import OrderedIterableABC
-
-
-class OrderedIterable(Iterable, OrderedIterableABC):
-    r"""Implementation of :class: `cpl_query.extension.Iterable` `cpl_query.extension.OrderedIterableABC`
-    """
-
-    def __init__(self, _t: type, _func: Callable = None, _values: Iterable = None):
-        Iterable.__init__(self, _t)
-        OrderedIterableABC.__init__(self, _t, _func, _values)
-
-    def then_by(self: OrderedIterableABC, _func: Callable) -> OrderedIterableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            raise ArgumentNoneException(ExceptionArgument.func)
-
-        self._funcs.append(_func)
-
-        return OrderedIterable(self.type, _func, sorted(self, key=lambda *args: [f(*args) for f in self._funcs]))
-
-    def then_by_descending(self: OrderedIterableABC, _func: Callable) -> OrderedIterableABC:
-        if self is None:
-            raise ArgumentNoneException(ExceptionArgument.list)
-
-        if _func is None:
-            raise ArgumentNoneException(ExceptionArgument.func)
-
-        self._funcs.append(_func)
-        return OrderedIterable(self.type, _func, sorted(self, key=lambda *args: [f(*args) for f in self._funcs], reverse=True))

unittests/unittests_cli/constants.py

@@ -6,4 +6,4 @@ if not os.getcwd().endswith('unittests'):
 
 PLAYGROUND_PATH = os.path.abspath(os.path.join(os.getcwd(), f'{base}test_cli_playground'))
 TRANSLATION_PATH = os.path.abspath(os.path.join(os.getcwd(), f'{base}unittests_translation'))
-CLI_PATH = os.path.abspath(os.path.join(os.getcwd(), f'{base}../src/cpl_cli/main.py'))
+CLI_PATH = os.path.abspath(os.path.join(os.getcwd(), f'../../src/cpl_cli/main.py'))

unittests/unittests_query/enumerable_query_test_case.py

@@ -11,7 +11,16 @@ from unittests_query.models import User, Address
 class EnumerableQueryTestCase(unittest.TestCase):
 
     def setUp(self) -> None:
-        self._tests = Enumerable(User)
+        users = []
+        for i in range(0, 100):
+            users.append(User(
+                String.random_string(string.ascii_letters, 8).lower(),
+                Address(
+                    String.random_string(string.ascii_letters, 10).lower(),
+                    randint(1, 10)
+                )
+            ))
+
         self._t_user = User(
             'Test user',
             Address(
@@ -27,22 +36,10 @@ class EnumerableQueryTestCase(unittest.TestCase):
             )
         )
 
-        self._generate_test_data()
+        users.append(self._t_user)
+        users.append(self._t_user2)
 
-    def _generate_test_data(self):
+        self._tests = Enumerable(User, users)
-        for i in range(0, 100):
-            user = User(
-                String.random_string(string.ascii_letters, 8).lower(),
-                Address(
-                    String.random_string(string.ascii_letters, 10).lower(),
-                    randint(1, 10)
-                )
-            )
-
-            self._tests.add(user)
-
-        self._tests.add(self._t_user)
-        self._tests.add(self._t_user2)
 
     def test_any(self):
         results = []

unittests/unittests_query/enumerable_test_case.py

@@ -6,17 +6,9 @@ from cpl_query.enumerable.enumerable import Enumerable
 class EnumerableTestCase(unittest.TestCase):
 
     def setUp(self) -> None:
-        self._list = Enumerable(int)
+        self._list = Enumerable(int, list(range(1, 4)))
-
-    def _clear(self):
-        self._list.clear()
-        self.assertEqual(self._list, [])
 
     def test_append(self):
-        self._list.add(1)
-        self._list.add(2)
-        self._list.add(3)
-
         self.assertEqual(self._list.to_list(), [1, 2, 3])
         self.assertRaises(Exception, lambda v: self._list.add(v), '3')
 
@@ -38,30 +30,7 @@ class EnumerableTestCase(unittest.TestCase):
             n += 1
 
     def test_get(self):
-        self._list.add(1)
-        self._list.add(2)
-        self._list.add(3)
-
         self.assertEqual(self._list.element_at(2), [1, 2, 3][2])
 
     def test_count(self):
-        self._list.add(1)
-        self._list.add(2)
-        self._list.add(3)
-
         self.assertEqual(self._list.count(), 3)
-
-    def test_remove(self):
-        old_values = self._list._values
-        self._list.add(1)
-        self.assertNotEqual(old_values, self._list._values)
-        self._list.add(2)
-        self._list.add(3)
-
-        self.assertEqual(self._list.to_list(), [1, 2, 3])
-        self.assertRaises(Exception, lambda v: self._list.add(v), '3')
-        old_values = self._list._values
-        self._list.remove(3)
-        self.assertNotEqual(old_values, self._list._values)
-        self.assertEqual(self._list.to_list(), [1, 2])
-        self.assertRaises(Exception, lambda v: self._list.add(v), '3')

unittests/unittests_query/iterable_query_test_case.py

@@ -113,7 +113,7 @@ class IterableQueryTestCase(unittest.TestCase):
 
             addresses.append(u.address.nr)
 
-        res2 = self._tests.distinct(lambda x: x.address.nr).select(lambda x: x.address.nr)
+        res2 = self._tests.distinct(lambda x: x.address.nr).select(lambda x: x.address.nr).to_list()
         self.assertEqual(addresses, res2)
 
     def test_element_at(self):
@@ -199,7 +199,7 @@ class IterableQueryTestCase(unittest.TestCase):
             groups[v].append(v)
             elements.append(v)
 
-        r1, r2 = list(groups.values()), elements.group_by()
+        r1, r2 = list(groups.values()), elements.group_by().select(lambda l: l.to_list()).to_list()
         self.assertEqual(r1, r2)
 
     def test_for_each(self):

unittests/unittests_query/models.py

@@ -4,9 +4,15 @@ class User:
         self.name = name
         self.address = address
 
+    def __repr__(self):
+        return f'<{type(self).__name__} {self.name} {self.address}>'
+
 
 class Address:
 
     def __init__(self, street, nr):
         self.street = street
         self.nr = nr
+
+    def __repr__(self):
+        return f'<{type(self).__name__} {self.street} {self.nr}>'